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Rationalization :O (1 Viewer)

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kazemagic

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I never came across rationalizing 3 numbers in a denominator lol :O O_O How do you do this?
Thanks
 
Carrotsticks

Carrotsticks

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Group two (any two will do) of them and rationalise one of them out, then do it again.
 
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kazemagic

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Thanks Carrot, but I don't think I quite get you.
Is the answer (-root2-root10+root3-root15)/-4 ?
 
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